diff --git a/lldb/source/Commands/CommandObjectHelp.cpp b/lldb/source/Commands/CommandObjectHelp.cpp
index 34f6e5d..c02a583 100644
--- a/lldb/source/Commands/CommandObjectHelp.cpp
+++ b/lldb/source/Commands/CommandObjectHelp.cpp
@@ -215,8 +215,7 @@
   // user is getting help on...
 
   if (cmd_obj) {
-    request.GetParsedLine().Shift();
-    request.SetCursorIndex(request.GetCursorIndex() - 1);
+    request.ShiftArguments();
     cmd_obj->HandleCompletion(request);
     return;
   }